Green Works® Toilet Bowl Cleaner provides a deep clean and removes tough stains such as rust, minerals and hard-water deposits. This formula is septic safe, and made with 98% plant-based cleaning ingredients. Formulated without parabens, bleach or ammonia and leaves no harsh chemical residues or smell. Green Works® provides you with a clean you can feel confident about. Its unique wide dispensing nozzle delivers that cleaning power under the bowl rim.